Daniel Radcliffe
With some creepy Death Eaters behind him, Daniel Radcliffe arrives to the premiere.
Rupert Grint, Emma Watson & Daniel Radcliffe
While her costars look a little worse for the weather wear at the U.K. premiere of Half-Blood Prince in 2009, Emma remains regal in this vintage Ossie Clark dress.
Bonnie Wright
Ron Weasley's little sister is all grown up at the London premiere of the Half-Blood Prince in this black and pink patterned mini.
Helena Bonham Carter
Bonham Carter keeps herself in character—or is it a case of art imitating life?—on the red carpet for the Half-Blood Prince premiere.
Harry Potter cast
As if the characters weren't beloved enough already, there's now a theme park! And several of the movie's castmembers attended this year's opening of the Wizarding World of Harry Potter at Universal Orlando.
Daniel Radcliffe, Emma Watson & Rupert Grint
The Half-Blood Prince stars ease up on the formalwear for a London photo call—while still posing with polish.
Daniel Radcliffe, Emma Watson & Rupert Grint
Slightly edgier outfits make an appearance as the Half-Blood Prince's worldwide press tour touches down in New York City.
Emma Watson
Talk about a style evolution over the years—Emma picks a sexy Proenza Schouler leather halter with white skirt for the Half-Blood Prince's New York premiere.
Daniel Radcliffe
Gryffindor's boy wonder gets all spiffy for a trip to Grauman's Chinese Theatre in 2007 to premiere Harry Potter and the Order of the Phoenix (and sign a few hundred autographs!).
Evanna Lynch & Katie Leung
The actresses otherwise known as Luna Lovegood and Cho Chang strike a casual pose at an Order of the Phoenix photo call.
Tom Felton
Felton's not a bad guy, he's just played one on the big screen for the last decade. Draco Malfoy's alter ego makes an appearance at the Order of the Phoenix's London premiere.
Robert Pattinson
R.Pattz looks a tad disheveled at the L.A. premiere in 2007, but to be fair, the onetime Cedric Diggory was shooting on another popular book turned movie franchise at the time.
Emma Watson
Hogwarts' school uniform gets a high-end makeover when Watson wears this blue dress with waist-cinching broach and detailed metal straps to the London premiere of Order of the Phoenix.
Daniel Radcliffe
Still experimenting with his red carpet style in 2005, Radcliffe chooses a green velvet jacket and waistcoat for the U.K. premiere of Harry Potter and the Goblet of Fire. It's a fashion experiment that, thankfully, didn't persist.
Rupert Grint & Robert Pattinson
Back in 2005 who could have predicted that Pattinson would wind up one of Harry Potter's biggest breakout stars? Not that Grint envies the attention. "It's crazy. You just can't really go anywhere," he's said of the Twilight star's fame.
Emma Watson
At 15, Watson opts for a very age-appropriate look while gracing the Goblet of Fire carpet in New York.
Stanislav Ianevski, Clemence Poesy, Katie Leung & Robert Pattinson
The movie's supporting cast (which includes several members of the Triwizarding Tournament) gets a chance to shine at a U.K. photo call for the Goblet of Fire.
Rupert Grint, Emma Watson & Daniel Radcliffe
All the attention doesn't seem to phase Watson as she promotes Harry Potter and the Prisoner of Azkaban in New York City in 2004. We're not sure the same can be said of her more stunned-looking costars.
Bonnie Wright
The young actress best known as Ginny Weasley was just hitting her teens—and stylishly so—when it came time to promote Harry Potter and the Prisoner of Azkaban.
James Phelps, Rupert Grint & Matthew Lewis
Let's just blame the British weather for this collectively bad hair day, shall we?
Emma Watson, Daniel Radcliffe & Rupert Grint
The gang seems to be getting into the swing of things by their second flick as they attend the New York premiere of Harry Potter and the Chamber of Secrets in 2002.
Tom Felton
The young actor already knows how to play the red carpet game, sporting a jacket and tie to the U.K. premiere of Harry Potter and the Sorcerers Stone in 2001.
Daniel Radcliffe, Rupert Grint & Emma Watson
The three stars look barely old enough to read as the wildly popular Harry Potter book series is turned into a movie franchise—starting with Harry Potter and the Sorcerers Stone in 2001.